yahoohadooptutorialcoderw/WordCount/MapClass.java
import java.io.IOException;
import java.util.StringTokenizer;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

public class MapClass extends Mapper<Object, Text, Text, IntWritable> {
	private final static IntWritable one = new IntWritable(1);
	private Text word = new Text();

	public void map(Object key, Text value, Context context)
			throws IOException, InterruptedException {

		String line = value.toString();
		StringTokenizer itr = new StringTokenizer(line.toLowerCase());
		while (itr.hasMoreTokens()) {
			word.set(itr.nextToken());
			context.write(word, one);
		}
	}

}
